<template>
	<!-- 最外层容器 -->
	<view class="my-settle-container">
		<!-- 全选区域 -->
		<label class="radio">
			<radio color="#c00000" 
			@click="changeAllState"
			:checked="isFullCheck"><text>全选</text></radio>
		</label>
		<!-- 合计区域 -->
		<view class="amount-box">
			合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
		</view>
		<!-- 按钮结算 -->
		<view class="btn-settle">结算（{{checkedCount}}）</view>
	</view>
</template>

<script>
	import {mapGetters,mapMutations} from 'vuex'
	export default {
		name:"my-settle",
		data() {
			return {
				
			};
		},
		computed:{
			...mapGetters('m_cart',['checkedCount','total','checkedGoodsAmount']),
			//是否全选
			isFullCheck(){
				return this.total===this.checkedCount;
			}
		},
		methods:{
			// 2. 使用 mapMutations 辅助函数，把 m_cart 模块提供的 updateAllGoodsState 方法映射到当前组件中使用
			...mapMutations('m_cart',['updateAllGoodsState']),
			changeAllState(){
				 // 修改购物车中所有商品的选中状态
				// !this.isFullCheck 表示：当前全选按钮的状态取反之后，就是最新的勾选状态
				this.updateAllGoodsState(!this.isFullCheck)
			}
		}
		
	}
</script>

<style lang="scss">
.my-settle-container{
	// 底部固定定位
	position: fixed;
	bottom:0;
	left:0;
	width:100%;
	height:50px;
	background-color:white;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding-left: 5px;
	font-size: 14px;
	
	.radio{
		display:flex;
		align-items: center;
	}
	.amount{
		color:#c00000;
	}
	
	.btn-settle{
		height: 50px;
		min-width: 100px;
		background-color: #c00000;
		color: white;
		line-height: 50px;
		text-align: center;
		padding:0 10px;
	}
}
</style>
